File: | src/bin/chio/obj/parse.c |
Warning: | line 620, column 13 Attempt to free released memory |
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1 | #include <stdlib.h> | |||
2 | #include <string.h> | |||
3 | #define YYBYACC1 1 | |||
4 | #define YYMAJOR1 1 | |||
5 | #define YYMINOR9 9 | |||
6 | #define YYLEXyylex() yylex() | |||
7 | #define YYEMPTY-1 -1 | |||
8 | #define yyclearin(yychar=(-1)) (yychar=(YYEMPTY-1)) | |||
9 | #define yyerrok(yyerrflag=0) (yyerrflag=0) | |||
10 | #define YYRECOVERING()(yyerrflag!=0) (yyerrflag!=0) | |||
11 | #define YYPREFIX"yy" "yy" | |||
12 | #line 24 "/usr/src/bin/chio/parse.y" | |||
13 | #include <sys/types.h> | |||
14 | #include <sys/socket.h> | |||
15 | #include <sys/queue.h> | |||
16 | ||||
17 | #include <ctype.h> | |||
18 | #include <err.h> | |||
19 | #include <libgen.h> | |||
20 | #include <limits.h> | |||
21 | #include <paths.h> | |||
22 | #include <stdarg.h> | |||
23 | #include <stdio.h> | |||
24 | #include <string.h> | |||
25 | ||||
26 | TAILQ_HEAD(files, file)struct files { struct file *tqh_first; struct file **tqh_last ; } files = TAILQ_HEAD_INITIALIZER(files){ ((void *)0), &(files).tqh_first }; | |||
27 | static struct file { | |||
28 | TAILQ_ENTRY(file)struct { struct file *tqe_next; struct file **tqe_prev; } entry; | |||
29 | FILE *stream; | |||
30 | char *name; | |||
31 | int lineno; | |||
32 | int errors; | |||
33 | } *file, *topfile; | |||
34 | struct file *pushfile(const char *); | |||
35 | int popfile(void); | |||
36 | int yyparse(void); | |||
37 | int yylex(void); | |||
38 | int yyerror(const char *, ...) | |||
39 | __attribute__((__format__ (printf, 1, 2))) | |||
40 | __attribute__((__nonnull__ (1))); | |||
41 | int kw_cmp(const void *, const void *); | |||
42 | int lookup(char *); | |||
43 | int lgetc(int); | |||
44 | int lungetc(int); | |||
45 | int findeol(void); | |||
46 | char *parse_tapedev(const char *, const char *, int); | |||
47 | struct changer *new_changer(char *); | |||
48 | ||||
49 | struct changer { | |||
50 | TAILQ_ENTRY(changer)struct { struct changer *tqe_next; struct changer **tqe_prev; } entry; | |||
51 | char *name; | |||
52 | char **drives; | |||
53 | u_int drivecnt; | |||
54 | }; | |||
55 | TAILQ_HEAD(changers, changer)struct changers { struct changer *tqh_first; struct changer * *tqh_last; } changers; | |||
56 | struct changer *curchanger; | |||
57 | ||||
58 | typedef struct { | |||
59 | union { | |||
60 | int64_t number; | |||
61 | char *string; | |||
62 | } v; | |||
63 | int lineno; | |||
64 | } YYSTYPE; | |||
65 | ||||
66 | #line 67 "parse.c" | |||
67 | #define CHANGER257 257 | |||
68 | #define DRIVE258 258 | |||
69 | #define ERROR259 259 | |||
70 | #define STRING260 260 | |||
71 | #define NUMBER261 261 | |||
72 | #define YYERRCODE256 256 | |||
73 | const short yylhs[] = | |||
74 | { -1, | |||
75 | 0, 0, 0, 0, 2, 2, 3, 5, 1, 4, | |||
76 | 4, 6, 6, 7, | |||
77 | }; | |||
78 | const short yylen[] = | |||
79 | { 2, | |||
80 | 0, 2, 3, 3, 2, 0, 2, 0, 8, 2, | |||
81 | 1, 2, 2, 2, | |||
82 | }; | |||
83 | const short yydefred[] = | |||
84 | { 1, | |||
85 | 0, 0, 0, 2, 0, 4, 0, 3, 0, 0, | |||
86 | 5, 0, 8, 0, 0, 0, 0, 11, 0, 0, | |||
87 | 13, 14, 9, 10, 12, 7, | |||
88 | }; | |||
89 | const short yydgoto[] = | |||
90 | { 1, | |||
91 | 5, 10, 21, 17, 14, 18, 19, | |||
92 | }; | |||
93 | const short yysindex[] = | |||
94 | { 0, | |||
95 | -10, 2, -255, 0, 3, 0, 4, 0, 4, -107, | |||
96 | 0, 4, 0, -248, 7, -242, -123, 0, 7, 4, | |||
97 | 0, 0, 0, 0, 0, 0,}; | |||
98 | const short yyrindex[] = | |||
99 | { 0, | |||
100 | 0, 0, 0, 0, 0, 0, -104, 0, -122, 0, | |||
101 | 0, -247, 0, 0, 0, 0, 0, 0, 0, -119, | |||
102 | 0, 0, 0, 0, 0, 0,}; | |||
103 | const short yygindex[] = | |||
104 | { 0, | |||
105 | 0, -5, 1, 0, 0, 5, 0, | |||
106 | }; | |||
107 | #define YYTABLESIZE247 247 | |||
108 | const short yytable[] = | |||
109 | { 4, | |||
110 | 6, 23, 6, 11, 7, 6, 13, 15, 6, 16, | |||
111 | 6, 6, 8, 9, 26, 12, 20, 22, 6, 25, | |||
112 | 0, 24, 0, 0, 0, 0, 0, 0, 0, 0, | |||
113 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
114 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
115 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
116 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
117 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
118 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
119 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
120 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
121 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
122 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
123 | 0, 0, 15, 6, 16, 6, 6, 0, 6, 0, | |||
124 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
125 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
126 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
127 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
128 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
129 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
130 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
131 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
132 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
133 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |||
134 | 0, 0, 0, 0, 0, 2, 3, | |||
135 | }; | |||
136 | const short yycheck[] = | |||
137 | { 10, | |||
138 | 123, 125, 125, 9, 260, 125, 12, 256, 256, 258, | |||
139 | 258, 10, 10, 10, 20, 123, 10, 260, 123, 19, | |||
140 | -1, 17, -1, -1, -1, -1, -1, -1, -1, -1, | |||
141 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
142 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
143 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
144 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
145 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
146 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
147 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
148 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
149 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
150 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
151 | -1, -1, 256, 256, 258, 258, 256, -1, 258, -1, | |||
152 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
153 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
154 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
155 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
156 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
157 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
158 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
159 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
160 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
161 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |||
162 | -1, -1, -1, -1, -1, 256, 257, | |||
163 | }; | |||
164 | #define YYFINAL1 1 | |||
165 | #ifndef YYDEBUG0 | |||
166 | #define YYDEBUG0 0 | |||
167 | #endif | |||
168 | #define YYMAXTOKEN261 261 | |||
169 | #if YYDEBUG0 | |||
170 | const char * const yyname[] = | |||
171 | { | |||
172 | "end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |||
173 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |||
174 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |||
175 | 0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |||
176 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |||
177 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |||
178 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"CHANGER","DRIVE", | |||
179 | "ERROR","STRING","NUMBER", | |||
180 | }; | |||
181 | const char * const yyrule[] = | |||
182 | {"$accept : grammar", | |||
183 | "grammar :", | |||
184 | "grammar : grammar '\\n'", | |||
185 | "grammar : grammar main '\\n'", | |||
186 | "grammar : grammar error '\\n'", | |||
187 | "optnl : '\\n' optnl", | |||
188 | "optnl :", | |||
189 | "nl : '\\n' optnl", | |||
190 | "$$1 :", | |||
191 | "main : CHANGER STRING optnl '{' optnl $$1 changeropts_l '}'", | |||
192 | "changeropts_l : changeropts_l changeroptsl", | |||
193 | "changeropts_l : changeroptsl", | |||
194 | "changeroptsl : changeropts nl", | |||
195 | "changeroptsl : error nl", | |||
196 | "changeropts : DRIVE STRING", | |||
197 | }; | |||
198 | #endif | |||
199 | #ifdef YYSTACKSIZE10000 | |||
200 | #undef YYMAXDEPTH10000 | |||
201 | #define YYMAXDEPTH10000 YYSTACKSIZE10000 | |||
202 | #else | |||
203 | #ifdef YYMAXDEPTH10000 | |||
204 | #define YYSTACKSIZE10000 YYMAXDEPTH10000 | |||
205 | #else | |||
206 | #define YYSTACKSIZE10000 10000 | |||
207 | #define YYMAXDEPTH10000 10000 | |||
208 | #endif | |||
209 | #endif | |||
210 | #define YYINITSTACKSIZE200 200 | |||
211 | /* LINTUSED */ | |||
212 | int yydebug; | |||
213 | int yynerrs; | |||
214 | int yyerrflag; | |||
215 | int yychar; | |||
216 | short *yyssp; | |||
217 | YYSTYPE *yyvsp; | |||
218 | YYSTYPE yyval; | |||
219 | YYSTYPE yylval; | |||
220 | short *yyss; | |||
221 | short *yysslim; | |||
222 | YYSTYPE *yyvs; | |||
223 | unsigned int yystacksize; | |||
224 | int yyparse(void); | |||
225 | #line 133 "/usr/src/bin/chio/parse.y" | |||
226 | ||||
227 | struct keywords { | |||
228 | const char *k_name; | |||
229 | int k_val; | |||
230 | }; | |||
231 | ||||
232 | int | |||
233 | yyerror(const char *fmt, ...) | |||
234 | { | |||
235 | va_list ap; | |||
236 | char *msg; | |||
237 | ||||
238 | file->errors++; | |||
239 | va_start(ap, fmt)__builtin_va_start(ap, fmt); | |||
240 | if (vasprintf(&msg, fmt, ap) == -1) | |||
241 | err(1, "yyerror vasprintf"); | |||
242 | va_end(ap)__builtin_va_end(ap); | |||
243 | err(1, "%s:%d: %s", file->name, yylval.lineno, msg); | |||
244 | free(msg); | |||
245 | return (0); | |||
246 | } | |||
247 | ||||
248 | int | |||
249 | kw_cmp(const void *k, const void *e) | |||
250 | { | |||
251 | return (strcmp(k, ((const struct keywords *)e)->k_name)); | |||
252 | } | |||
253 | ||||
254 | int | |||
255 | lookup(char *s) | |||
256 | { | |||
257 | /* this has to be sorted always */ | |||
258 | static const struct keywords keywords[] = { | |||
259 | { "changer", CHANGER257}, | |||
260 | { "drive", DRIVE258} | |||
261 | }; | |||
262 | const struct keywords *p; | |||
263 | ||||
264 | p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]), | |||
265 | sizeof(keywords[0]), kw_cmp); | |||
266 | ||||
267 | if (p) | |||
268 | return (p->k_val); | |||
269 | else | |||
270 | return (STRING260); | |||
271 | } | |||
272 | ||||
273 | #define MAXPUSHBACK128 128 | |||
274 | ||||
275 | char *parsebuf; | |||
276 | int parseindex; | |||
277 | char pushback_buffer[MAXPUSHBACK128]; | |||
278 | int pushback_index = 0; | |||
279 | ||||
280 | int | |||
281 | lgetc(int quotec) | |||
282 | { | |||
283 | int c, next; | |||
284 | ||||
285 | if (parsebuf) { | |||
286 | /* Read character from the parsebuffer instead of input. */ | |||
287 | if (parseindex >= 0) { | |||
288 | c = (unsigned char)parsebuf[parseindex++]; | |||
289 | if (c != '\0') | |||
290 | return (c); | |||
291 | parsebuf = NULL((void *)0); | |||
292 | } else | |||
293 | parseindex++; | |||
294 | } | |||
295 | ||||
296 | if (pushback_index) | |||
297 | return ((unsigned char)pushback_buffer[--pushback_index]); | |||
298 | ||||
299 | if (quotec) { | |||
300 | if ((c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream))) == EOF(-1)) { | |||
301 | yyerror("reached end of file while parsing " | |||
302 | "quoted string"); | |||
303 | if (file == topfile || popfile() == EOF(-1)) | |||
304 | return (EOF(-1)); | |||
305 | return (quotec); | |||
306 | } | |||
307 | return (c); | |||
308 | } | |||
309 | ||||
310 | while ((c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream))) == '\\') { | |||
311 | next = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream)); | |||
312 | if (next != '\n') { | |||
313 | c = next; | |||
314 | break; | |||
315 | } | |||
316 | yylval.lineno = file->lineno; | |||
317 | file->lineno++; | |||
318 | } | |||
319 | ||||
320 | while (c == EOF(-1)) { | |||
321 | if (file == topfile || popfile() == EOF(-1)) | |||
322 | return (EOF(-1)); | |||
323 | c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream)); | |||
324 | } | |||
325 | return (c); | |||
326 | } | |||
327 | ||||
328 | int | |||
329 | lungetc(int c) | |||
330 | { | |||
331 | if (c == EOF(-1)) | |||
332 | return (EOF(-1)); | |||
333 | if (parsebuf) { | |||
334 | parseindex--; | |||
335 | if (parseindex >= 0) | |||
336 | return (c); | |||
337 | } | |||
338 | if (pushback_index + 1 >= MAXPUSHBACK128) | |||
339 | return (EOF(-1)); | |||
340 | pushback_buffer[pushback_index++] = c; | |||
341 | return (c); | |||
342 | } | |||
343 | ||||
344 | int | |||
345 | findeol(void) | |||
346 | { | |||
347 | int c; | |||
348 | ||||
349 | parsebuf = NULL((void *)0); | |||
350 | pushback_index = 0; | |||
351 | ||||
352 | /* skip to either EOF or the first real EOL */ | |||
353 | while (1) { | |||
354 | c = lgetc(0); | |||
355 | if (c == '\n') { | |||
356 | file->lineno++; | |||
357 | break; | |||
358 | } | |||
359 | if (c == EOF(-1)) | |||
360 | break; | |||
361 | } | |||
362 | return (ERROR259); | |||
363 | } | |||
364 | ||||
365 | int | |||
366 | yylex(void) | |||
367 | { | |||
368 | char buf[8096]; | |||
369 | char *p; | |||
370 | int quotec, next, c; | |||
371 | int token; | |||
372 | ||||
373 | p = buf; | |||
374 | while ((c = lgetc(0)) == ' ' || c == '\t') | |||
375 | ; /* nothing */ | |||
376 | ||||
377 | yylval.lineno = file->lineno; | |||
378 | if (c == '#') | |||
379 | while ((c = lgetc(0)) != '\n' && c != EOF(-1)) | |||
380 | ; /* nothing */ | |||
381 | ||||
382 | switch (c) { | |||
383 | case '\'': | |||
384 | case '"': | |||
385 | quotec = c; | |||
386 | while (1) { | |||
387 | if ((c = lgetc(quotec)) == EOF(-1)) | |||
388 | return (0); | |||
389 | if (c == '\n') { | |||
390 | file->lineno++; | |||
391 | continue; | |||
392 | } else if (c == '\\') { | |||
393 | if ((next = lgetc(quotec)) == EOF(-1)) | |||
394 | return (0); | |||
395 | if (next == quotec || c == ' ' || c == '\t') | |||
396 | c = next; | |||
397 | else if (next == '\n') | |||
398 | continue; | |||
399 | else | |||
400 | lungetc(next); | |||
401 | } else if (c == quotec) { | |||
402 | *p = '\0'; | |||
403 | break; | |||
404 | } else if (c == '\0') { | |||
405 | yyerror("syntax error"); | |||
406 | return (findeol()); | |||
407 | } | |||
408 | if (p + 1 >= buf + sizeof(buf) - 1) { | |||
409 | yyerror("string too long"); | |||
410 | return (findeol()); | |||
411 | } | |||
412 | *p++ = c; | |||
413 | } | |||
414 | yylval.v.string = strdup(buf); | |||
415 | if (yylval.v.string == NULL((void *)0)) | |||
416 | err(1, "%s", __func__); | |||
417 | return (STRING260); | |||
418 | } | |||
419 | ||||
420 | #define allowed_to_end_number(x)(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=') \ | |||
421 | (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=') | |||
422 | ||||
423 | if (c == '-' || isdigit(c)) { | |||
424 | do { | |||
425 | *p++ = c; | |||
426 | if ((size_t)(p-buf) >= sizeof(buf)) { | |||
427 | yyerror("string too long"); | |||
428 | return (findeol()); | |||
429 | } | |||
430 | } while ((c = lgetc(0)) != EOF(-1) && isdigit(c)); | |||
431 | lungetc(c); | |||
432 | if (p == buf + 1 && buf[0] == '-') | |||
433 | goto nodigits; | |||
434 | if (c == EOF(-1) || allowed_to_end_number(c)(isspace(c) || c == ')' || c ==',' || c == '/' || c == '}' || c == '=')) { | |||
435 | const char *errstr = NULL((void *)0); | |||
436 | ||||
437 | *p = '\0'; | |||
438 | yylval.v.number = strtonum(buf, LLONG_MIN(-9223372036854775807LL -1LL), | |||
439 | LLONG_MAX9223372036854775807LL, &errstr); | |||
440 | if (errstr) { | |||
441 | yyerror("\"%s\" invalid number: %s", | |||
442 | buf, errstr); | |||
443 | return (findeol()); | |||
444 | } | |||
445 | return (NUMBER261); | |||
446 | } else { | |||
447 | nodigits: | |||
448 | while (p > buf + 1) | |||
449 | lungetc((unsigned char)*--p); | |||
450 | c = (unsigned char)*--p; | |||
451 | if (c == '-') | |||
452 | return (c); | |||
453 | } | |||
454 | } | |||
455 | ||||
456 | #define allowed_in_string(x)(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && x != '{' && x != '}' && x != '<' && x != '>' && x != '!' && x != '=' && x != '/' && x != '#' && x != ',') ) \ | |||
457 | (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \ | |||
458 | x != '{' && x != '}' && x != '<' && x != '>' && \ | |||
459 | x != '!' && x != '=' && x != '/' && x != '#' && \ | |||
460 | x != ',')) | |||
461 | ||||
462 | if (isalnum(c) || c == ':' || c == '_' || c == '*') { | |||
463 | do { | |||
464 | *p++ = c; | |||
465 | if ((size_t)(p-buf) >= sizeof(buf)) { | |||
466 | yyerror("string too long"); | |||
467 | return (findeol()); | |||
468 | } | |||
469 | } while ((c = lgetc(0)) != EOF(-1) && (allowed_in_string(c)(isalnum(c) || (ispunct(c) && c != '(' && c != ')' && c != '{' && c != '}' && c != '<' && c != '>' && c != '!' && c != '=' && c != '/' && c != '#' && c != ',') ))); | |||
470 | lungetc(c); | |||
471 | *p = '\0'; | |||
472 | if ((token = lookup(buf)) == STRING260) | |||
473 | if ((yylval.v.string = strdup(buf)) == NULL((void *)0)) | |||
474 | err(1, "%s", __func__); | |||
475 | return (token); | |||
476 | } | |||
477 | if (c == '\n') { | |||
478 | yylval.lineno = file->lineno; | |||
479 | file->lineno++; | |||
480 | } | |||
481 | if (c == EOF(-1)) | |||
482 | return (0); | |||
483 | return (c); | |||
484 | } | |||
485 | ||||
486 | struct file * | |||
487 | pushfile(const char *name) | |||
488 | { | |||
489 | struct file *nfile; | |||
490 | ||||
491 | if ((nfile = calloc(1, sizeof(struct file))) == NULL((void *)0)) | |||
492 | return (NULL((void *)0)); | |||
493 | if ((nfile->name = strdup(name)) == NULL((void *)0)) { | |||
494 | free(nfile); | |||
495 | return (NULL((void *)0)); | |||
496 | } | |||
497 | if ((nfile->stream = fopen(nfile->name, "r")) == NULL((void *)0)) { | |||
498 | free(nfile->name); | |||
499 | free(nfile); | |||
500 | return (NULL((void *)0)); | |||
501 | } | |||
502 | nfile->lineno = 1; | |||
503 | TAILQ_INSERT_TAIL(&files, nfile, entry)do { (nfile)->entry.tqe_next = ((void *)0); (nfile)->entry .tqe_prev = (&files)->tqh_last; *(&files)->tqh_last = (nfile); (&files)->tqh_last = &(nfile)->entry .tqe_next; } while (0); | |||
504 | return (nfile); | |||
505 | } | |||
506 | ||||
507 | int | |||
508 | popfile(void) | |||
509 | { | |||
510 | struct file *prev; | |||
511 | ||||
512 | if ((prev = TAILQ_PREV(file, files, entry)(*(((struct files *)((file)->entry.tqe_prev))->tqh_last ))) != NULL((void *)0)) | |||
513 | prev->errors += file->errors; | |||
514 | ||||
515 | TAILQ_REMOVE(&files, file, entry)do { if (((file)->entry.tqe_next) != ((void *)0)) (file)-> entry.tqe_next->entry.tqe_prev = (file)->entry.tqe_prev ; else (&files)->tqh_last = (file)->entry.tqe_prev; *(file)->entry.tqe_prev = (file)->entry.tqe_next; ; ; } while (0); | |||
516 | fclose(file->stream); | |||
517 | free(file->name); | |||
518 | free(file); | |||
519 | file = prev; | |||
520 | return (file ? 0 : EOF(-1)); | |||
521 | } | |||
522 | ||||
523 | char * | |||
524 | parse_tapedev(const char *filename, const char *changer, int drive) | |||
525 | { | |||
526 | struct changer *p; | |||
527 | char *tapedev = NULL((void *)0); | |||
528 | int errors = 0; | |||
529 | ||||
530 | TAILQ_INIT(&changers)do { (&changers)->tqh_first = ((void *)0); (&changers )->tqh_last = &(&changers)->tqh_first; } while ( 0); | |||
| ||||
531 | ||||
532 | if ((file = pushfile(filename)) == NULL((void *)0)) { | |||
533 | warnx("cannot open the main config file!"); | |||
534 | goto guess; | |||
535 | } | |||
536 | topfile = file; | |||
537 | ||||
538 | yyparse(); | |||
539 | errors = file->errors; | |||
540 | popfile(); | |||
541 | ||||
542 | if (strncmp(changer, _PATH_DEV"/dev/", sizeof(_PATH_DEV"/dev/") - 1) == 0) | |||
543 | changer += sizeof(_PATH_DEV"/dev/") - 1; | |||
544 | TAILQ_FOREACH(p, &changers, entry)for((p) = ((&changers)->tqh_first); (p) != ((void *)0) ; (p) = ((p)->entry.tqe_next)) { | |||
545 | if (strcmp(changer, p->name) == 0) { | |||
546 | if (drive >= 0 && drive < p->drivecnt) { | |||
547 | if (asprintf(&tapedev, _PATH_DEV"/dev/" "%s", | |||
548 | p->drives[drive]) == -1) | |||
549 | errx(1, "malloc failed"); | |||
550 | } else | |||
551 | tapedev = NULL((void *)0); | |||
552 | } | |||
553 | } | |||
554 | ||||
555 | guess: | |||
556 | /* if no device found, do the default of /dev/rstX */ | |||
557 | if (tapedev == NULL((void *)0)) | |||
558 | if (asprintf(&tapedev, "/dev/rst%d", drive) == -1) | |||
559 | errx(1, "malloc failed"); | |||
560 | return (tapedev); | |||
561 | } | |||
562 | ||||
563 | struct changer * | |||
564 | new_changer(char *name) | |||
565 | { | |||
566 | struct changer *p; | |||
567 | ||||
568 | if ((p = calloc(1, sizeof(*p))) == NULL((void *)0)) | |||
569 | err(1, NULL((void *)0)); | |||
570 | ||||
571 | if ((p->name = strdup(name)) == NULL((void *)0)) | |||
572 | err(1, NULL((void *)0)); | |||
573 | ||||
574 | return (p); | |||
575 | } | |||
576 | ||||
577 | ||||
578 | #line 571 "parse.c" | |||
579 | /* allocate initial stack or double stack size, up to YYMAXDEPTH */ | |||
580 | static int yygrowstack(void) | |||
581 | { | |||
582 | unsigned int newsize; | |||
583 | long sslen; | |||
584 | short *newss; | |||
585 | YYSTYPE *newvs; | |||
586 | ||||
587 | if ((newsize = yystacksize) == 0) | |||
588 | newsize = YYINITSTACKSIZE200; | |||
589 | else if (newsize >= YYMAXDEPTH10000) | |||
590 | return -1; | |||
591 | else if ((newsize *= 2) > YYMAXDEPTH10000) | |||
592 | newsize = YYMAXDEPTH10000; | |||
593 | sslen = yyssp - yyss; | |||
594 | #ifdef SIZE_MAX | |||
595 | #define YY_SIZE_MAX0xffffffffU SIZE_MAX | |||
596 | #else | |||
597 | #define YY_SIZE_MAX0xffffffffU 0xffffffffU | |||
598 | #endif | |||
599 | if (newsize && YY_SIZE_MAX0xffffffffU / newsize < sizeof *newss) | |||
600 | goto bail; | |||
601 | newss = (short *)realloc(yyss, newsize * sizeof *newss); | |||
602 | if (newss == NULL((void *)0)) | |||
603 | goto bail; | |||
604 | yyss = newss; | |||
605 | yyssp = newss + sslen; | |||
606 | if (newsize
| |||
607 | goto bail; | |||
608 | newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs); | |||
609 | if (newvs == NULL((void *)0)) | |||
610 | goto bail; | |||
611 | yyvs = newvs; | |||
612 | yyvsp = newvs + sslen; | |||
613 | yystacksize = newsize; | |||
614 | yysslim = yyss + newsize - 1; | |||
615 | return 0; | |||
616 | bail: | |||
617 | if (yyss
| |||
618 | free(yyss); | |||
619 | if (yyvs) | |||
620 | free(yyvs); | |||
| ||||
621 | yyss = yyssp = NULL((void *)0); | |||
622 | yyvs = yyvsp = NULL((void *)0); | |||
623 | yystacksize = 0; | |||
624 | return -1; | |||
625 | } | |||
626 | ||||
627 | #define YYABORTgoto yyabort goto yyabort | |||
628 | #define YYREJECTgoto yyabort goto yyabort | |||
629 | #define YYACCEPTgoto yyaccept goto yyaccept | |||
630 | #define YYERRORgoto yyerrlab goto yyerrlab | |||
631 | int | |||
632 | yyparse(void) | |||
633 | { | |||
634 | int yym, yyn, yystate; | |||
635 | #if YYDEBUG0 | |||
636 | const char *yys; | |||
637 | ||||
638 | if ((yys = getenv("YYDEBUG"))) | |||
639 | { | |||
640 | yyn = *yys; | |||
641 | if (yyn >= '0' && yyn <= '9') | |||
642 | yydebug = yyn - '0'; | |||
643 | } | |||
644 | #endif /* YYDEBUG */ | |||
645 | ||||
646 | yynerrs = 0; | |||
647 | yyerrflag = 0; | |||
648 | yychar = (-1); | |||
649 | ||||
650 | if (yyss == NULL((void *)0) && yygrowstack()) goto yyoverflow; | |||
651 | yyssp = yyss; | |||
652 | yyvsp = yyvs; | |||
653 | *yyssp = yystate = 0; | |||
654 | ||||
655 | yyloop: | |||
656 | if ((yyn = yydefred[yystate]) != 0) goto yyreduce; | |||
657 | if (yychar < 0) | |||
658 | { | |||
659 | if ((yychar = yylex()) < 0) yychar = 0; | |||
660 | #if YYDEBUG0 | |||
661 | if (yydebug) | |||
662 | { | |||
663 | yys = 0; | |||
664 | if (yychar <= YYMAXTOKEN261) yys = yyname[yychar]; | |||
665 | if (!yys) yys = "illegal-symbol"; | |||
666 | printf("%sdebug: state %d, reading %d (%s)\n", | |||
667 | YYPREFIX"yy", yystate, yychar, yys); | |||
668 | } | |||
669 | #endif | |||
670 | } | |||
671 | if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 && | |||
672 | yyn <= YYTABLESIZE247 && yycheck[yyn] == yychar) | |||
673 | { | |||
674 | #if YYDEBUG0 | |||
675 | if (yydebug) | |||
676 | printf("%sdebug: state %d, shifting to state %d\n", | |||
677 | YYPREFIX"yy", yystate, yytable[yyn]); | |||
678 | #endif | |||
679 | if (yyssp >= yysslim && yygrowstack()) | |||
680 | { | |||
681 | goto yyoverflow; | |||
682 | } | |||
683 | *++yyssp = yystate = yytable[yyn]; | |||
684 | *++yyvsp = yylval; | |||
685 | yychar = (-1); | |||
686 | if (yyerrflag > 0) --yyerrflag; | |||
687 | goto yyloop; | |||
688 | } | |||
689 | if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 && | |||
690 | yyn <= YYTABLESIZE247 && yycheck[yyn] == yychar) | |||
691 | { | |||
692 | yyn = yytable[yyn]; | |||
693 | goto yyreduce; | |||
694 | } | |||
695 | if (yyerrflag) goto yyinrecovery; | |||
696 | #if defined(__GNUC__4) | |||
697 | goto yynewerror; | |||
698 | #endif | |||
699 | yynewerror: | |||
700 | yyerror("syntax error"); | |||
701 | #if defined(__GNUC__4) | |||
702 | goto yyerrlab; | |||
703 | #endif | |||
704 | yyerrlab: | |||
705 | ++yynerrs; | |||
706 | yyinrecovery: | |||
707 | if (yyerrflag < 3) | |||
708 | { | |||
709 | yyerrflag = 3; | |||
710 | for (;;) | |||
711 | { | |||
712 | if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE256) >= 0 && | |||
713 | yyn <= YYTABLESIZE247 && yycheck[yyn] == YYERRCODE256) | |||
714 | { | |||
715 | #if YYDEBUG0 | |||
716 | if (yydebug) | |||
717 | printf("%sdebug: state %d, error recovery shifting\ | |||
718 | to state %d\n", YYPREFIX"yy", *yyssp, yytable[yyn]); | |||
719 | #endif | |||
720 | if (yyssp >= yysslim && yygrowstack()) | |||
721 | { | |||
722 | goto yyoverflow; | |||
723 | } | |||
724 | *++yyssp = yystate = yytable[yyn]; | |||
725 | *++yyvsp = yylval; | |||
726 | goto yyloop; | |||
727 | } | |||
728 | else | |||
729 | { | |||
730 | #if YYDEBUG0 | |||
731 | if (yydebug) | |||
732 | printf("%sdebug: error recovery discarding state %d\n", | |||
733 | YYPREFIX"yy", *yyssp); | |||
734 | #endif | |||
735 | if (yyssp <= yyss) goto yyabort; | |||
736 | --yyssp; | |||
737 | --yyvsp; | |||
738 | } | |||
739 | } | |||
740 | } | |||
741 | else | |||
742 | { | |||
743 | if (yychar == 0) goto yyabort; | |||
744 | #if YYDEBUG0 | |||
745 | if (yydebug) | |||
746 | { | |||
747 | yys = 0; | |||
748 | if (yychar <= YYMAXTOKEN261) yys = yyname[yychar]; | |||
749 | if (!yys) yys = "illegal-symbol"; | |||
750 | printf("%sdebug: state %d, error recovery discards token %d (%s)\n", | |||
751 | YYPREFIX"yy", yystate, yychar, yys); | |||
752 | } | |||
753 | #endif | |||
754 | yychar = (-1); | |||
755 | goto yyloop; | |||
756 | } | |||
757 | yyreduce: | |||
758 | #if YYDEBUG0 | |||
759 | if (yydebug) | |||
760 | printf("%sdebug: state %d, reducing by rule %d (%s)\n", | |||
761 | YYPREFIX"yy", yystate, yyn, yyrule[yyn]); | |||
762 | #endif | |||
763 | yym = yylen[yyn]; | |||
764 | if (yym) | |||
765 | yyval = yyvsp[1-yym]; | |||
766 | else | |||
767 | memset(&yyval, 0, sizeof yyval); | |||
768 | switch (yyn) | |||
769 | { | |||
770 | case 4: | |||
771 | #line 89 "/usr/src/bin/chio/parse.y" | |||
772 | { file->errors++; } | |||
773 | break; | |||
774 | case 8: | |||
775 | #line 99 "/usr/src/bin/chio/parse.y" | |||
776 | { | |||
777 | curchanger = new_changer(yyvsp[-3].v.string); | |||
778 | } | |||
779 | break; | |||
780 | case 9: | |||
781 | #line 102 "/usr/src/bin/chio/parse.y" | |||
782 | { | |||
783 | TAILQ_INSERT_TAIL(&changers, curchanger, entry)do { (curchanger)->entry.tqe_next = ((void *)0); (curchanger )->entry.tqe_prev = (&changers)->tqh_last; *(&changers )->tqh_last = (curchanger); (&changers)->tqh_last = &(curchanger)->entry.tqe_next; } while (0); | |||
784 | curchanger = NULL((void *)0); | |||
785 | } | |||
786 | break; | |||
787 | case 14: | |||
788 | #line 116 "/usr/src/bin/chio/parse.y" | |||
789 | { | |||
790 | void *newp; | |||
791 | ||||
792 | if ((newp = reallocarray(curchanger->drives, | |||
793 | curchanger->drivecnt + 1, | |||
794 | sizeof(curchanger->drives))) == NULL((void *)0)) | |||
795 | err(1, NULL((void *)0)); | |||
796 | curchanger->drives = newp; | |||
797 | if ((curchanger->drives[curchanger->drivecnt] = | |||
798 | strdup(yyvsp[0].v.string)) == NULL((void *)0)) | |||
799 | err(1, NULL((void *)0)); | |||
800 | curchanger->drivecnt++; | |||
801 | free(yyvsp[0].v.string); | |||
802 | } | |||
803 | break; | |||
804 | #line 797 "parse.c" | |||
805 | } | |||
806 | yyssp -= yym; | |||
807 | yystate = *yyssp; | |||
808 | yyvsp -= yym; | |||
809 | yym = yylhs[yyn]; | |||
810 | if (yystate == 0 && yym == 0) | |||
811 | { | |||
812 | #if YYDEBUG0 | |||
813 | if (yydebug) | |||
814 | printf("%sdebug: after reduction, shifting from state 0 to\ | |||
815 | state %d\n", YYPREFIX"yy", YYFINAL1); | |||
816 | #endif | |||
817 | yystate = YYFINAL1; | |||
818 | *++yyssp = YYFINAL1; | |||
819 | *++yyvsp = yyval; | |||
820 | if (yychar < 0) | |||
821 | { | |||
822 | if ((yychar = yylex()) < 0) yychar = 0; | |||
823 | #if YYDEBUG0 | |||
824 | if (yydebug) | |||
825 | { | |||
826 | yys = 0; | |||
827 | if (yychar <= YYMAXTOKEN261) yys = yyname[yychar]; | |||
828 | if (!yys) yys = "illegal-symbol"; | |||
829 | printf("%sdebug: state %d, reading %d (%s)\n", | |||
830 | YYPREFIX"yy", YYFINAL1, yychar, yys); | |||
831 | } | |||
832 | #endif | |||
833 | } | |||
834 | if (yychar == 0) goto yyaccept; | |||
835 | goto yyloop; | |||
836 | } | |||
837 | if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 && | |||
838 | yyn <= YYTABLESIZE247 && yycheck[yyn] == yystate) | |||
839 | yystate = yytable[yyn]; | |||
840 | else | |||
841 | yystate = yydgoto[yym]; | |||
842 | #if YYDEBUG0 | |||
843 | if (yydebug) | |||
844 | printf("%sdebug: after reduction, shifting from state %d \ | |||
845 | to state %d\n", YYPREFIX"yy", *yyssp, yystate); | |||
846 | #endif | |||
847 | if (yyssp >= yysslim && yygrowstack()) | |||
848 | { | |||
849 | goto yyoverflow; | |||
850 | } | |||
851 | *++yyssp = yystate; | |||
852 | *++yyvsp = yyval; | |||
853 | goto yyloop; | |||
854 | yyoverflow: | |||
855 | yyerror("yacc stack overflow"); | |||
856 | yyabort: | |||
857 | if (yyss) | |||
858 | free(yyss); | |||
859 | if (yyvs) | |||
860 | free(yyvs); | |||
861 | yyss = yyssp = NULL((void *)0); | |||
862 | yyvs = yyvsp = NULL((void *)0); | |||
863 | yystacksize = 0; | |||
864 | return (1); | |||
865 | yyaccept: | |||
866 | if (yyss) | |||
867 | free(yyss); | |||
868 | if (yyvs) | |||
869 | free(yyvs); | |||
870 | yyss = yyssp = NULL((void *)0); | |||
871 | yyvs = yyvsp = NULL((void *)0); | |||
872 | yystacksize = 0; | |||
873 | return (0); | |||
874 | } |